Annual report pursuant to Section 13 and 15(d)

NATURE OF OPERATIONS AND ACCOUNTING POLICIES (Tables)

v2.4.1.9
NATURE OF OPERATIONS AND ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Deferred Revenues
Deferred revenues, the balance of which is offset in receivables, and related activity during the years ended December 31, 2014, 2013 and 2012 were as follows (in thousands):
 
 
2014
 
2013
 
2012
Balance at beginning of period
 
$
24,243

 
$
8,953

 
$
123

Revenues deferred during period
 
32,142

 
37,936

 
25,908

Revenues recognized during period
 
(25,338
)
 
(22,646
)
 
(17,078
)
Balance at end of period
 
$
31,047

 
$
24,243

 
$
8,953

Schedule of Allowance for Doubtful Accounts
Allowance for doubtful accounts for the years ended December 31, 2014, 2013 and 2012 were as follows (in thousands):
 
 
2014
 
2013
 
2012
Balance at beginning of period
 
$
3,101

 
$
2,668

 
$
59

Additional allowances charged to expense
 
254

 
764

 
2,798

Recovery of previously reserved accounts
 
(1,324
)
 
(306
)
 
(189
)
Write-offs
 
(76
)
 
(25
)
 
—

Balance at end of period
 
$
1,955

 
$
3,101

 
$
2,668

Schedule of Inventory Allowance
The following table is a roll forward of the allowance related to dormant, obsolete and excess inventory for the years ended December 31, 2014, 2013 and 2012 (in thousands):
 
 
2014
 
2013
 
2012
Balance at beginning of period
 
$
5,169

 
$
9,213

 
$
7,281

Increases (decreases) to allowance
 
(78
)
 
(4,044
)
 
1,932

Balance at end of period
 
$
5,091

 
$
5,169

 
$
9,213

Schedule of Estimated Useful Life for New Property and Equipment
As of December 31, 2014 the estimated useful life (in years) of the Company’s categories of new property and equipment was as follows:
Helicopters (estimated salvage value at 40% of cost)
 
15

Machinery, equipment and spares
 
5-7

Buildings and leasehold improvements
 
10-30

Furniture, fixtures, vehicles and other
 
3-5